Status Handling; I.6.1 Status Handling - Emerson Rosemount 5400 Series Reference Manual

Appendix I: Analog-Input block
November 2014
I.6.1

Status handling

Normally, the status of the PV reflects the status of the measurement value, the operating
condition of the I/O card, and any active alarm condition. In Auto mode, OUT reflects the value
and status quality of the PV. In Man mode, the OUT status constant limit is set to indicate that
the value is a constant and the OUT status is Good.
The Uncertain - EU range violation status is always set, and the PV status is set high- or
low-limited if the sensor limits for conversion are exceeded.
In the STATUS_OPTS parameter, you can select from the following options to control the status
handling:
BAD if limited – sets the OUT status quality to Bad when the value is higher or lower than the
sensor limits.
Uncertain if limited – sets the OUT status quality to Uncertain when the value is higher or lower
than the sensor limits.
Uncertain if in manual mode – The status of the Output is set to Uncertain when the mode is
set to Manual.
Note
The instrument must be in Manual or Out of service mode to set the status option.
The AI block only supports the BAD if limited option. Unsupported options are not grayed out;
they appear on the screen in the same manner as supported options.
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Reference Manual
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Analog-Input Block